UV pen



FIG. 1 is a top view of a UV pen;

FIG. 2 is a bottom view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is left rear perspective view thereof.

The broken lines in the drawings are included to show portions of the UV pen that form no part of the claimed design. 

CLAIM The ornamental design for a UV pen, as shown and described. 